Codacy style changes for test files

test/sampleSize/sampleSize.js

@@ -1,9 +1,10 @@
 const sampleSize = ([...arr], n = 1) => {
-let m = arr.length;
-while (m) {
-const i = Math.floor(Math.random() * m--);
-[arr[m], arr[i]] = [arr[i], arr[m]];
-}
-return arr.slice(0, n);
+  let m = arr.length;
+  while (m) {
+    const i = Math.floor(Math.random() * m--);
+    [arr[m], arr[i]] = [arr[i], arr[m]];
+  }
+  return arr.slice(0, n);
 };
+
 module.exports = sampleSize;